Metallic singletree or doubletree



1931- ca. E. POWERS 1,830,482

METALLIC SINGLETREE OR DOUBLETREE Filed Oct. 29- 1930 IN VEN TOR.

Geo 6E.P0% BY 1y 8/17 Patented Nov.- 3, 1931 UNITED GEORGE E. rownns, on ennnnnrnnn, 0e10, Assienon or onn-ronnrir'ro warren. e. COCKERILL, or ennnnrrnnn-onro v METALLIC sinennrnnn on nounnn'rnnn Application filed October 29, 1930. Serial No. 492,056.

This invention relates to a metallic singletree or doubletree.

An obj ect of the invention is the construction of a singletree or a doubletree which is comparatively light, but strong, and which is also practical and durable.

Another object of my invention is the construction of each of the main units of the device out of a pipe-like body, with a rod threaded through the ends of said body, and

the ends of the rod formed into eyes, which eyes are of a very novel and efficient structure.

With the foregoing and other objects in view, the invention comprises certain novel constructions, combinations and arrangements of parts as Wlll be hereinafter fully described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claim. In the drawings:

Figure 1 is a perspective view of a doubletree constructed in accordance with the present invention, in which three pipe-like body units are employed, each very similar in general construction.

Figure 2 is an enlarged longitudinal sectional view taken on line 2-2, Figure 1, and looking in the direction of the arrows.

Figure 3 is an enlarged transverse sectional view taken on line 3-3, Figure 1,and looking in the direction of the arrows.

It is to be understood that in making a singletree or a doubletree in accordance with my invention, I construct a singletree on substantially the same principle as the spreader device or main support of a doubletree, and this will be more clearly understood in the following description. Therefore, referring to the drawings by reference numerals, 1

designates a pipe-like body of the spreader device or main support 2 and 3, 3 are the pipe-like bodies of the singletrees, similar in construction to body 1. I utilize a pipe-like body in constructing bodies 1 and 3, because of the simplicity and efiiciency thereof. In said bodies 1and3, I form near each end and in the inner side a round aperture 4; registering with aperture 4 is an elongated aperture 5, which is formed in the outer side of "tures of the pipe-like body, and then is bent down from the position C, Fig; 2, shownsaid my (ri -S. 2am 3' I estate 6 which is provided at its center with a loop 7 andthe ends of the bar'arethreaded through the sets of registering apertures 4: and-5 and the extreme outer portion of the endeareformed into eyes 8. The extreme outer end 90f each eyeisforced by any suitable means into-the elongated aperture 5 andthe rod 7 is drawn taut through the registering aperby dotted lines, to its'normal position D (F g. 2). "Ihisfizaut drawing of the rod causes the eye to press hard on'the points of aperture 5,-at"A and"B,-With 'consider- =65 able pressure at, point' E, thereby securely locking the eye against spreading or getting out of shape.

The eyes on the pipe-like body 1, as well as the elongated apertures 5, extend in a position' parallel to the longitudinal axis of the body, whereas the eyes of bodies 3 and their apertures 5 are positioned transverse to the longitudinal axis, yet the same highly eflicient structure or principle is involved in 75 each instance. 7

A suitable hook .10 is secured in the loop 7 of the rod 6 carried by body 1, and by medium of this hook, the device may be attached to any implement or vehicle or load, as the operator desires.

The loops 7 of the bodies 3 are connected to eyes 8 of body 1 by means of links 11.

In the eyes 8 of bodies 3, hooks 12 are secured for attaching the devices to the traces 1 1 or trace chains on the draft animals.

By the novel construction of the pipe-like bodies and eyes, the greater the strain exerted on the device, the more secure the eyes are held against opening, or spreading apart, bl) which would be very undesirable;

My hollow tubular or pipe-like bodies can apertures, said rod having its endsformed or spreader device 2, and hence the three essential units shown in Figure 1 are each susceptible of being covered by what I hereinafter claim.

While I have described the preferred embodiment of my invention and illustrated the same in the accompanying drawings, certain minor changes or alterations may appear to one skilled in the art to which this invention relates during the extensive manufacture of the same, and I, therefore, reserve the right to make such changes or alterations as shall fairly fall within the scope of the appended claim.

What I claim is:

Ina device of the class desc'ribed the combination of a pipe like body, said body provided with sets of apertures near its ends, each set COIHPIlSlIlg around aperture in the :lIlIlGI' side of sand body and a reg stering elongated aperture in the outersideof said body, a rodthreaded through bothsetsvof into eyes against the walls of said elongated apertures, and the extreme outer endsof said eyes-in parallelism with the portions of the rod in said apertures and seated entirely in said outer elongated apertures, substantially as shown and described.

In testimony whereof I hereunto aflix my signature. 7

- V GEORGE E. POWERS. 

